Could have gone like: "You're in violation of the ToS." "Our legal team looked it over. We don't think we are." "Well here's a more clear version of the ToS.

Could have gone like: "You're in violation of the ToS." "Our legal team looked it over. We don't think we are." "Well here's a more clear version of the ToS. You definitely are in violation." Unity might think they only changed the wording, but they feel they kept the spirit of the original ToS.